KR20090081069A - 전극접합형 이차전지의 제조방법 - Google Patents
전극접합형 이차전지의 제조방법 Download PDFInfo
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Abstract
Description
| 항목 | 본 방법으로 제작된 이차전지 |
| 0.5C 충전방전 효율(%) | 98∼99 |
| 내부저항(mΩ) | 45∼55 |
| 이차전지 수명(%)(0.5C충전 방전 100차례) | 95.2 |
| 자동 방전율(28일)(%) | 92.4 |
Claims (6)
- (1) 고체 플러스 전극을 제조하는 단계와;(2) 고체 마이너스 전극을 제조하는 단계와;(3) 접착제(polymer), 충진제(filler), 아세톤과 NMP(N-Methy1-2-pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제의 혼합액을 구멍이 많은 폴리에틸렌(polyethylene) 박막 또는 폴리프로필렌(polypropylene)박막의 앞뒷면에 발라 건조 후 격리막(separator membrane)을 형성하는 단계; 및(4) 상기 고체 플러스 전극, 고체 마이너스 전극과 격리막을 예정된 크기로 절단한 후 격리막을 상기 고체 플러스 전극과 고체 마이너스 전극의 사이에 끼운 후에 눌러 접합하고 열풍으로 건조하여 바이셀(bicell)을 제조하는 단계를 포함하는데,상기 두 종류의 각기 다른 비등점을 가진 용제는 상기 접착제의 용해에 사용되는데, 낮은 비등점을 가진 용제인 아세톤은 휘발되고, 높은 비등점을 가진 용제인 NMP는 점성과 가소성에 의해 상기 격리막을 응고된 아교모양으로 유지되게 하여 상기 고체 플러스 전극과 고체 마이너스 전극의 접합에 이용되는 것을 특징으로 하는 전극접합형 이차전지의 제조방법.
- (a) 접착제(polymer), 아세톤과 NMP(N-Methy1-2-pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제(solvent)와 전극재료를 혼합한 액체를 직접 집전 체(current collector)의 앞뒤 양면에 바르고 건조하여 고체 플러스 전극(solid state positive electrode)를 제조하는 단계와;(b) 접착제(polymer), 아세톤과 NMP(N-Methy1-2-pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제(solvent)와 전극재료를 혼합한 액체를 직접 집전체(current collector)의 앞뒤 양면에 바르고 건조하여 고체 마이너스 전극(solid state positive electrode)를 제조하는 단계와;(c) 접착제(polymer), 아세톤과 NMP(N-Methy1-2-pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제(solvent)와 전극재료를 혼합한 액체를 구멍이 많은 얇은 막의 앞뒷면에 바르고 건조하여 격리막(separator membrane)을 제조하는 단계; 및(d) 상기 고체 플러스 전극, 고체 마이너스 전극과 격리막을 예정된 크기로 절단한 후 격리막을 플러스 전극과 마이너스 전극의 사이에 끼운 후에 눌러 접합하고 열풍으로 건조하여 바이셀(bicell)을 제조하는 단계를 포함하는데,상기 (a)와 (b)단계의 두 종류의 각기 다른 비등점을 가진 용제로 상기 접착제를 용해하는데, 낮은 비등점을 가진 용제인 아세톤이 휘발되고, 높은 비등점을 가진 용제인 NMP는 점성과 가소성에 의해 상기 액체를 응고된 아교모양으로 유지되게 하여 상기 집전체와의 접합에 이용되고,상기 (c)단계의 두 종류의 각기 다른 비등점을 가진 용제로 상기 접착제를 용해하는데, 낮은 비등점을 가진 용제인 아세톤이 휘발되고, 높은 비등점을 가진 용제인 NMP는 점성과 가소성에 의해 상기 격리막을 응고된 아교모양으로 유지되게 하여 상기 플러스 전극과 마이너스 전극의 접합에 이용되는 것을 특징으로 하는 전극접합형 이차전지의 제조방법.
- (a) 접착제(polymer), 아세톤과 NMP(N-Methy1-2-pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제(solvent)와 전극재료를 혼합한 플러스 전극 액체재료를 기재에 바르고 상기 두 종류의 각기 다른 비등점을 가진 용제를 이용하여 상기 접착제를 용해시키는데, 낮은 비등점을 가진 용제인 아세톤은 휘발되고, 높은 비등점을 가진 용제인 NMP는 상기 플러스 전극 액체재료가 응고된 아교모양을 유지하게 하며 건조 후 상기 기재를 떼어내어 플러스 극막이 되게 하고, 상기 플러스 극막을 그물모양의 집전체의 앞뒤 양면에 놓고 열압을 가해 고체 플러스 전극을 제조하는 단계와;(b) 접착제(polymer), 아세톤과 NMP(N-Methy1-2-pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제(solvent)와 전극재료를 혼합한 마이너스 전극 액체재료를 기재에 바르고 상기 두 종류의 각기 다른 비등점을 가진 용제를 이용하여 상기 접착제를 용해시키는데, 낮은 비등점을 가진 용제인 아세톤은 휘발되고, 높은 비등점을 가진 용제인 NMP는 상기 마이너스 전극 액체재료가 응고된 아교모양을 유지하게 하며 건조 후 상기 기재를 떼어내어 마이너스 극막이 되게 하고, 상기 마이너스 극막을 그물모양의 집전체의 앞뒤 양면에 놓고 열압을 가해 고체 마이너스 전극을 제조하는 단계와;(c) 접착제(polymer), 충진제(filler), 아세톤과 NMP(N-Methy1-2- pyrrolidone)의 두 종류의 각기 다른 비등점을 가진 용제를 혼합한 격리막 액체재료를 구멍이 많은 얇은 막의 앞뒷면에 바르고 건조를 거친 후 격리막(separator membrane)을 형성하는 단계; 및(d) 상기 고체 플러스 전극, 고체 마이너스 전극과 격리막을 예정된 크기로 절단한 후 격리막을 상기 고체 플러스 전극과 고체 마이너스 전극의 사이에 끼운 후에 눌러 접합하고 열풍으로 건조하여 바이셀(bicell)을 제조하는 단계를 포함하는데,상기 두 종류의 각기 다른 비등점을 가진 용제를 이용하여 상기 접착제를 용해시키는데, 낮은 비등점을 가진 용제인 아세톤은 휘발되고, 높은 비등점을 가진 용제인 NMP는 점성과 가소성에 의해 상기 격리막을 응고된 아교모양으로 유지되게 하여 상기 플러스 전극과 마이너스 전극의 접합에 이용되는 것을 특징으로 하는 전극접합형 이차전지의 제조방법.
- 제2항 또는 제3항에 있어서, 상기 구멍이 많은 얇은 막은 폴리에틸렌(polyethylene) 박막(membrane) 또는 폴리프로필렌(polypropylene) 박막(membrane)인 것을 특징으로 하는 전극접합형 이차전지의 제조방법.
- 제2항에 있어서, 상기 플러스 전극의 집전체는 알루미늄 박지이고, 상기 마이너스 전극의 집전체는 구리박지인 것을 특징으로 하는 전극접합형 이차전지의 제조방법.
- 제3항에 있어서, 상기 고체 플러스 전극과 고체 마이너스 전극 액체재료를 바르는 기재는 PET이고, 상기 고체 플러스 전극의 그물모양의 집전체는 알루미늄 박지이고 상기 고체 마이너스 전극의 그물모양 집전체는 구리박지인 것을 특징으로 하는 전극접합형 이차전지의 제조방법.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/874,904 US20080038447A1 (en) | 2005-07-21 | 2007-10-19 | Fabricating method of electrode adhesive bicell |
| KR1020080006934A KR101005113B1 (ko) | 2007-10-19 | 2008-01-23 | 전극접합형 이차전지의 제조방법 |
| CA002629498A CA2629498A1 (en) | 2007-10-19 | 2008-04-18 | Fabricating method of electrode adhesive bicell |
| EP08154882A EP2051316A1 (en) | 2007-10-19 | 2008-04-21 | Fabricating method of electrode adhesive bicell |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/874,904 US20080038447A1 (en) | 2005-07-21 | 2007-10-19 | Fabricating method of electrode adhesive bicell |
| KR1020080006934A KR101005113B1 (ko) | 2007-10-19 | 2008-01-23 | 전극접합형 이차전지의 제조방법 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR20090081069A true KR20090081069A (ko) | 2009-07-28 |
| KR101005113B1 KR101005113B1 (ko) | 2010-12-30 |
Family
ID=50858380
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020080006934A Expired - Fee Related KR101005113B1 (ko) | 2005-07-21 | 2008-01-23 | 전극접합형 이차전지의 제조방법 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20080038447A1 (ko) |
| EP (1) | EP2051316A1 (ko) |
| KR (1) | KR101005113B1 (ko) |
| CA (1) | CA2629498A1 (ko) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080038447A1 (en) * | 2005-07-21 | 2008-02-14 | Yu-Ta Tu | Fabricating method of electrode adhesive bicell |
| AU2010254037B2 (en) * | 2009-05-29 | 2014-05-01 | Arkema Inc. | Aqueous polyvinylidene fluoride composition |
| US20120015246A1 (en) | 2010-05-27 | 2012-01-19 | Arkema Inc. | Waterborne fluoropolymer composition |
| US20150280239A1 (en) | 2014-04-01 | 2015-10-01 | Ppg Industries Ohio, Inc. | Aqueous binder composition for lithium ion electrical storage devices |
| US9385374B2 (en) | 2014-04-01 | 2016-07-05 | Ppg Industries Ohio, Inc. | Electrode binder composition for lithium ion electrical storage devices |
| CN111370622B (zh) * | 2020-03-18 | 2022-01-28 | 江苏厚生新能源科技有限公司 | 可控涂覆面积的涂胶隔膜及其制备方法、涂胶层、锂电池 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5540741A (en) | 1993-03-05 | 1996-07-30 | Bell Communications Research, Inc. | Lithium secondary battery extraction method |
| WO1999044245A1 (en) * | 1998-02-24 | 1999-09-02 | Ramot University Authority For Applied Research & Industrial Development Ltd. | Ion conductive matrixes and their use |
| KR20000019372A (ko) * | 1998-09-10 | 2000-04-06 | 박호군 | 균질상의 고체고분자합금 전해질 및 그 제조방법과, 그 전해질을 이용한 복합전극, 리튬고분자전지, 리튬이온고분자전지 및그 제조방법 |
| KR100456647B1 (ko) * | 1999-08-05 | 2004-11-10 | 에스케이씨 주식회사 | 리튬 이온 폴리머 전지 |
| KR100553737B1 (ko) | 1999-09-06 | 2006-02-20 | 삼성에스디아이 주식회사 | 리튬 이온 폴리머 전지의 전극 활물질 조성물, 세퍼레이타 조성물 및 이를 이용한 리튬 이온 폴리머 전지의 제조방법 |
| SG103298A1 (en) * | 2000-06-16 | 2004-04-29 | Nisshin Spinning | Polymer battery and method of manufacture |
| KR100406690B1 (ko) * | 2001-03-05 | 2003-11-21 | 주식회사 엘지화학 | 다성분계 복합 필름을 이용한 전기화학소자 |
| TWI251362B (en) * | 2005-04-13 | 2006-03-11 | Vista Advance Technology Co Lt | Lithium polymer battery |
| US20080038447A1 (en) * | 2005-07-21 | 2008-02-14 | Yu-Ta Tu | Fabricating method of electrode adhesive bicell |
-
2007
- 2007-10-19 US US11/874,904 patent/US20080038447A1/en not_active Abandoned
-
2008
- 2008-01-23 KR KR1020080006934A patent/KR101005113B1/ko not_active Expired - Fee Related
- 2008-04-18 CA CA002629498A patent/CA2629498A1/en not_active Abandoned
- 2008-04-21 EP EP08154882A patent/EP2051316A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| US20080038447A1 (en) | 2008-02-14 |
| CA2629498A1 (en) | 2009-04-19 |
| KR101005113B1 (ko) | 2010-12-30 |
| EP2051316A1 (en) | 2009-04-22 |
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